Crates / iggy
Rust crate · real downloads · data Oct 27, 2026
iggy downloads, and should you depend on it?
Iggy is the persistent message streaming platform written in Rust, supporting QUIC, TCP and HTTP transport protocols, capable of processing millions of messages per second. crates.io · docs · repository
alternatives · is it still maintained?
Few direct dependents and losing ground.
iggy: only 11 crates name it directly; small bumps on release days (1.27x the baseline).
How this verdict is decided (4 rules)
- Usage: crates.io reverse dependencies (crates that list it as a dependency): 10,000+ = foundational, 1,000+ = widely used, 100+ = established, under 100 = few direct dependents.
- Direction: the median quiet day in the last 30 days of the window against the first 30, read against the median tracked crate (the whole field moved +39% from late summer to October, so a raw trend says nothing). 10%+ ahead of the field = gaining; 10%+ behind = losing ground; otherwise steady. Steady with no release in 2+ years = quiet for years.
- Release spikes: the median release-window day against the quiet-day baseline: under 1.15x = no spike, 1.15x to 1.3x = small bumps, 1.3x or more = jumps on release days.
- Release recency: days since the newest version that was not yanked, from crates.io publish times.
release window (release day + next day)quiet dayquiet-day median · download the 89 days as CSV
The numbers in one paragraphiggy got 82,195 crates.io downloads from Jul 30, 2026 to Oct 26, 2026. 28% of them landed within 2 days of one of its 13 releases. On the other 66 quiet days it got a median of 706 a day, about 4,946 a week. Capping release days at that baseline leaves 74,371 release-adjusted downloads for the window.
What this means if you're choosing a dependency
- You rarely add this one yourself. Only 11 crates name it directly.
- Actively released. 0.11.1-edge.5 shipped today (Oct 27, 2026).
- Still pre-1.0 (0.11.1-edge.5). Under Cargo's semver rules a 0.x minor bump may break you, so pin the minor version (
iggy = "0.11") and read the changelog on upgrades. - Fit check: license Apache-2.0, edition 2024, needs Rust 1.95 or newer (from the latest version's manifest).
- Compare it by the baseline, not the raw count. 28% of its 82,195 downloads in the window landed within 2 days of a release; the steady number is 706 a day.
Alternatives that do a similar job
Crates that share its crates.io category or keywords, most similar first. Each line is the crate's own description, then how it compares on the same data.
Its place in the dependency graph
iggy builds on
Tracked crates its latest version (0.11.1-edge.5) depends on.
What the chart says
- Weekend quiet days ran at 76% of weekday quiet days (572 vs 756). A moderate dip: a mix of work-week builds and always-on automation.
- Biggest day: 2,708 on Oct 5, 2026, a quiet day with no release nearby.
Every number
| All-time downloads | 344,424 (outside the crates.io top 1,000 by all-time downloads) |
| Downloads in the window | 82,195 (Jul 30, 2026 to Oct 26, 2026, 89 days) |
| Within 2 days of a release | 23,285 (28.3%) |
| Quiet-day median (baseline) | 706 a day; weekdays 756, weekends 572 |
| Release-adjusted downloads | 74,371 (release-window days capped at the baseline) |
| Baseline rank | #1196 of the 1243 crates we track |
| Quiet-day trend | +0% raw, -28% against the median tracked crate (+39%) |
| Releases in the window | 13 |
| Versions published, ever | 191 |
| Latest version | 0.11.1-edge.5, published Oct 27, 2026 (license Apache-2.0, edition 2024, MSRV 1.95) |
| First published | Jul 14, 2023 |
| Reverse dependencies | 11 |
Releases in the window
Each one opens a 2-day release window on the chart. Showing the last 12 of 13.
| Version | Published | Downloads that version got (lifetime) |
|---|---|---|
| 0.11.1-edge.4 | Oct 25, 2026 | 188 |
| 0.11.1-edge.3 | Oct 24, 2026 | 18 |
| 0.11.1-edge.2 | Oct 23, 2026 | 420 |
| 0.11.1-edge.1 | Oct 2, 2026 | 129 |
| 0.11.0 | Sep 18, 2026 | 22,995 |
| 0.11.0-edge.8 | Sep 11, 2026 | 391 |
| 0.11.0-edge.7 | Sep 7, 2026 | 136 |
| 0.11.0-edge.6 | Aug 31, 2026 | 121 |
| 0.11.0-edge.5 | Aug 28, 2026 | 271 |
| 0.11.0-edge.4 | Aug 18, 2026 | 265 |
| 0.11.0-edge.3 | Aug 17, 2026 | 38 |
| 0.11.0-edge.2 | Aug 12, 2026 | 395 |
How we compute this
crates.io counts every download, including CI runners, mirrors and bots that fetch each new version, so raw counts run high (why, in The Manual). We split the last 89 days into release windows (the day a version of iggy was published, plus the next day) and quiet days, and use the median quiet day as the baseline: an upper bound on steady use, never a head count. The method and data come from our study of 90 days of crates.io data from 69 crates, featured in This Week in Rust #674; check any crate live with the real-downloads checker.
Badge for your README
Maintainers can show the baseline in a README. It is optional, updates when we refresh the data, and links back here. Preview, then copy:
README, light
README, dark
Publishing a crate of your own? How to publish a Rust crate to crates.io, step by step.
Categories
Sources
- Daily downloads: crates.io API, /crates/iggy/downloads (last 90 days, all versions), fetched Oct 27, 2026.
- Versions and publish times: crates.io API, /crates/iggy/versions, same fetch.
- Reverse dependencies: crates.io reverse dependencies, same fetch. Dependency edges between tracked crates: each crate's default version, crates.io API.
- Fetched politely (one request every 2 seconds, identified User-Agent) per the crates.io data access policy. Data is crates.io's; the release-window split, baseline and verdict rules are ours, CC BY 4.0.
Up next
Next in database interfaces: Next in Database interfaces by real downloads: 395 a day, 12 dependents. Few direct dependents and losing ground.fluvioRust crate. The official Fluvio driver for Rust. Real use: 395 downloads a day on quiet days; 12 crates depend on it.Read it next →Also worth your time
Art: Nicholas Roerich, Nag Lake (1925). Public domain, via Wikimedia Commons.
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